What is baking powder?

    baking powderBaking powder is also a dry chemical leavening agent which is made up of sodium bicarbonate (yes, baking soda), a weak acid (like cream of tartar) and starch, mostly cornstarch to improve the consistency.

    Most baking powders available in the market today are double acting, meaning, leavening occurs in two stages, once when it comes into contact with a wet ingredient and once when the batter is heated.